RS Coronae Borealis

RS Coronae Borealis is a [semiregular variable star|variable star|semiregular] variable star located in the constellation Corona Borealis with a parallax of 2.93mas being a distance of. It varies between magnitudes 8.7 to 11.6 over 332 days. It is unusual in that it is a red star with a high proper motion. Located around 1072 light-years distant, it shines with a luminosity approximately 1839 times that of the Sun and has a surface temperature of 3340 K.
In 1907 it was announced that Henrietta Swan Leavitt had discovered the star, then called BD+36°2672, is a variable star. It was given its variable star designation, RS Coronae Borealis, in 1910.